chromaticity: meaning, definition, pronunciation and examples
C2 / Very Low Frequency / TechnicalTechnical / Scientific
Quick answer
What does “chromaticity” mean?
The quality of a colour defined by its dominant wavelength (hue) and its purity (saturation), independent of its brightness.
Audio
Pronunciation
Definition
Meaning and Definition
The quality of a colour defined by its dominant wavelength (hue) and its purity (saturation), independent of its brightness.
A scientific measurement specifying the colour appearance of a stimulus in terms of its hue and saturation. In imaging and signal processing, it's the part of a colour specification that is independent of luminance.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences. Technical spelling and application are identical. Potential minor pronunciation differences as per regional accent.
Connotations
None beyond its scientific precision.
Frequency
Extremely low frequency in both regions, confined to specialised fields like optics, colour science, imaging, and display technology.
Grammar
How to Use “chromaticity” in a Sentence
the chromaticity of [noun phrase][noun] chromaticitychromaticity and luminanceVocabulary
Collocations
Examples
Examples of “chromaticity” in a Sentence
adjective
British English
- The chromaticity coordinates were plotted.
- A chromaticity difference was detectable.
American English
- The chromaticity values were recorded.
- A chromaticity shift was observed.
Usage
Meaning in Context
Business
Virtually never used, except in highly specific B2B contexts for display/lighting manufacturers.
Academic
Used in physics, engineering, computer science, and psychology papers on colour vision and imaging.
Everyday
Never used.
Technical
Core term in colorimetry, photography, television, display calibration, and lighting design. e.g., 'The CIE 1931 chromaticity diagram is a standard.'
Vocabulary
Synonyms of “chromaticity”
Strong
Neutral
Weak
Vocabulary
Antonyms of “chromaticity”
Watch out
Common Mistakes When Using “chromaticity”
- Using 'chromaticity' to mean brightness or intensity.
- Pronouncing it /krɒˈmætɪsɪti/ (incorrect stress).
- Using it in non-technical contexts where 'colour' or 'shade' is sufficient.
FAQ
Frequently Asked Questions
No. 'Colour' is a general, perceptual term. 'Chromaticity' is a specific, measurable component of colour that defines its hue and purity, excluding brightness.
In fields like lighting design, television engineering, photography, and any scientific work involving precise colour measurement. It's a graph where all colours can be plotted based on their chromaticity coordinates.
Yes, though it's less common. Examples include 'chromaticity coordinates' or 'chromaticity shift', where it functions as a noun adjunct modifying another noun.
It ensures that the hues and saturations produced by a display are accurate and consistent. Calibration aims to match the screen's chromaticity to a standard (like sRGB or DCI-P3) so colours appear as intended.
The quality of a colour defined by its dominant wavelength (hue) and its purity (saturation), independent of its brightness.
Chromaticity is usually technical / scientific in register.
Chromaticity: in British English it is pronounced /ˌkrəʊməˈtɪsɪti/, and in American English it is pronounced /ˌkroʊməˈtɪsɪti/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of CHROMATICITY as the CHROMA-tic (colour) IDENTITY of a light source, specifying its hue and saturation.
Conceptual Metaphor
COLOUR IS A POINT ON A MAP (chromaticity diagram).
Practice
Quiz
What does 'chromaticity' specifically describe about a colour?